AG
Legal
Arntzen Grette
Full-service Norwegian firm created by the 2025 Arntzen de Besche–Grette merger.
About
Formed in October 2025 when Arntzen de Besche and Grette combined, in what has been described as the largest merger in the history of the Norwegian legal market. The firm brings together roughly 200 lawyers across Oslo, Stavanger, Trondheim and Mo i Rana, with projected first-year revenue of around NOK 900m — a full-service commercial practice with particular focus on industry, energy, aquaculture, real estate and construction.
Services
M&A counsel
Legal due diligence
Competition / antitrust
Tax structuring
Restructuring advisory
Specialisation
Representative deals3
At a glance
Advisor typeLaw firm
Firm typeFull-service law firm
HeadquartersOslo
Founded2025
Team200 people
Deal segment—
OfficesOslo, Stavanger, Trondheim, Mo i Rana
CoverageNorway
Is this your firm?
This profile is compiled from public sources. Get in touch to correct details, add deals, or take ownership of the listing.
Choosing an M&A advisor?
A short guide to comparing advisors in Norway — what to ask, and which kind of firm suits which mandate.
